BEBB GTIR

Cars been standing for 4 years just getting it all back together ready for the spring but the dials don't illuminate?

They were working befor strip down haven't really touched them tbh, can't see any loose wires, all dials including middle are lit up with the original white bulbs but very dim but the blue Lockwood dials are not lit up! Control box is warm which suggests power is on any other ideas from anyone? Could the control box be knackered?